Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. An electronic device comprising: a central processing unit providing an image signal and an input control signal; first and second display panels that respectively display images; first and second display panel drivers that drive the first and second display panels according to the image signal and the input control signal; first and second light source units that respectively provide light to the first and second display panels; and first and second light source drivers that respectively control the first and second light source units, wherein the central processing unit comprises an interface transmission unit outputting an interface signal controlling the first and second display panel drivers, the first and second display panel drivers respectively comprise first and second interface receiving units, the first interface receiving unit and the second interface receiving unit each directly and simultaneously receive the interface signal including a display panel selection bit and a data bit following the display panel selection bit in a same packet as the display panel selection bit from the interface transmission unit, the input control signal comprises a main clock signal, and the main clock signal is input to the first and second interface receiving units, respectively, the first and second light source units respectively comprise third and fourth interface receiving units that receive the interface signal from the interface transmission unit, the interface signal further comprises a light source selection bit, the main clock signal is input to the third and fourth interface receiving units, respectively, one of the first and second light source units is selected by the light source selection bit, the first light source unit is selected by the light source selection bit when the first display panel is selected by the display panel selection bit, and the second light source unit is selected by the light source selection bit when the second display panel is selected by the display panel selection bit, and the light source selection bit is output before the data bit is output.
An electronic device has a CPU, two display panels, two display panel drivers, two light sources (like backlights), and two light source drivers. The CPU sends an image and control signals. The display drivers power the panels based on these signals. The CPU also has an interface that sends a special "interface signal" to control both display panel drivers and light source drivers. This interface signal is simultaneously received by both display panel drivers, containing a bit to select which display panel to control, followed by data for that panel. The interface signal also includes a bit to select one of the light sources, sent before the data bit. The light source selection bit selects the first light source when the first display panel is selected, and the second light source when the second display panel is selected. A main clock signal synchronizes the signal for all the receiving units.
2. The electronic device of claim 1 , wherein one of the first and second light source units is selected by the light source selection bit, and wherein the data bit comprises a command value to control one of the first display panel driver, the second display panel driver, the first light source driver, and the second light source driver.
The electronic device described where the CPU sends an image and control signals, two display panels display images, two display panel drivers drive the display panels, two light sources provide light, and two light source drivers control the light sources using an interface signal that includes display and light source selection bits sent before the data bit, uses the data bit in the interface signal to carry a command. This command controls either the first display panel driver, the second display panel driver, the first light source driver, or the second light source driver. The light source selection bit selects one of the two light sources to control.
3. The electronic device of claim 1 , wherein the interface transmission unit and the first to fourth interface receiving units respectively comprise serial peripheral interface devices, and wherein the interface signal comprises a serial communication signal.
The electronic device described where the CPU sends an image and control signals, two display panels display images, two display panel drivers drive the display panels, two light sources provide light, and two light source drivers control the light sources using an interface signal that includes display and light source selection bits sent before the data bit, uses a serial peripheral interface (SPI) for communication. The interface on the CPU and the receiving interfaces on the display panel drivers and light source drivers are all SPI devices. The "interface signal" is a serial communication signal sent via SPI.
4. The electronic device of claim 1 , wherein the first display panel driver, the second display panel driver, the first light source driver, and the second light source driver are formed as respective single integration circuit chips.
The electronic device described where the CPU sends an image and control signals, two display panels display images, two display panel drivers drive the display panels, two light sources provide light, and two light source drivers control the light sources using an interface signal that includes display and light source selection bits sent before the data bit, has the display panel drivers and light source drivers implemented as separate, individual integrated circuit chips.
5. The electronic device of claim 1 , wherein the display panel selection bit is output before the data bit is output, and wherein one of the first and second display panels is selected by the display panel selection bit.
The electronic device described where the CPU sends an image and control signals, two display panels display images, two display panel drivers drive the display panels, two light sources provide light, and two light source drivers control the light sources using an interface signal that includes display and light source selection bits sent before the data bit, sends the display panel selection bit before the data bit in the interface signal. This selection bit chooses either the first or second display panel for subsequent data.
6. A display device comprising: first and second display panels that respectively display images; first and second display panel drivers that drive the first and second display panels, Respectively; first and second light source units that respectively provide light to the first and second display panels; and first and second light source drivers that respectively control the first and second light source units, wherein the first and second display panels respectively comprise first and second interface receiving units, the first interface receiving unit and the second interface receiving unit each directly and simultaneously receive a same interface signal including a display panel selection bit and a data bit following the display panel selection bit in a same packet as the display panel selection bit to control driving conditions of the drivers, the input control signal comprises a main clock signal, and the main clock signal is input to the first and second interface receiving units, respectively, the first and second light source units respectively comprise third and fourth interface receiving units that receive the interface signal, the interface signal further comprises a light source selection bit, the first light source unit is selected by the light source selection bit when the first display panel is selected by the display panel selection bit, and the second light source unit is selected by the light source selection bit when the second display panel is selected by the display panel selection bit, and the light source selection bit is output before the data bit is output.
A display device contains two display panels, two display panel drivers, two light sources, and two light source drivers. The display panel drivers control the display panels. The light sources provide light to the display panels, and the light source drivers control the light sources. The display panel drivers and light source drivers receive a shared "interface signal" simultaneously. This signal contains a display panel selection bit and a data bit. The light source selection bit selects the first light source when the first display panel is selected, and selects the second light source when the second display panel is selected. A main clock signal synchronizes the signal for all the receiving units. The light source selection bit is sent before the data bit.
7. The display device of claim 6 , wherein the display panel selection bit is output before the data bit is output.
The display device that contains two display panels, two display panel drivers, two light sources and two light source drivers and uses a shared interface signal which contains a display panel selection bit and a data bit, sends the display panel selection bit before the data bit in the interface signal.
8. The display device of claim 6 , wherein the data bit comprises a command value to control one of the first display panel driver, the second display panel driver, the first light source driver, and the second light source driver.
The display device that contains two display panels, two display panel drivers, two light sources and two light source drivers and uses a shared interface signal which contains a display panel selection bit and a data bit, the data bit within the interface signal contains a command to control either the first display panel driver, the second display panel driver, the first light source driver, or the second light source driver.
Unknown
November 11, 2014
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